From: Thor Thayer <ttha...@opensource.altera.com>

In preparation for the Arria10 peripheral ECCs, a register
offset from the ECC base was added to the private data
structure to index to the error injection register.

Signed-off-by: Thor Thayer <ttha...@opensource.altera.com>
---
v2: Split large patch into smaller patches. Add an ECC
    error inject offset to support the different register
    layout of Arria10 peripheral ECCs.
---
 drivers/edac/altera_edac.c |    7 +++++--
 drivers/edac/altera_edac.h |    1 +
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/edac/altera_edac.c b/drivers/edac/altera_edac.c
index 138446c..9e62a49 100644
--- a/drivers/edac/altera_edac.c
+++ b/drivers/edac/altera_edac.c
@@ -622,8 +622,9 @@ static ssize_t altr_edac_device_trig(struct file *file,
                if (ACCESS_ONCE(ptemp[i]))
                        result = -1;
                /* Toggle Error bit (it is latched), leave ECC enabled */
-               writel(error_mask, drvdata->base);
-               writel(priv->ecc_enable_mask, drvdata->base);
+               writel(error_mask, (drvdata->base + priv->set_err_ofst));
+               writel(priv->ecc_enable_mask, (drvdata->base +
+                                              priv->set_err_ofst));
                ptemp[i] = i;
        }
        /* Ensure it has been written out */
@@ -881,6 +882,7 @@ const struct edac_device_prv_data ocramecc_data = {
        .ecc_en_ofst = ALTR_OCR_ECC_REG_OFFSET,
        .ce_set_mask = (ALTR_OCR_ECC_EN | ALTR_OCR_ECC_INJS),
        .ue_set_mask = (ALTR_OCR_ECC_EN | ALTR_OCR_ECC_INJD),
+       .set_err_ofst = ALTR_OCR_ECC_REG_OFFSET,
        .trig_alloc_sz = ALTR_TRIG_OCRAM_BYTE_SIZE,
 };
 
@@ -954,6 +956,7 @@ const struct edac_device_prv_data l2ecc_data = {
        .ecc_en_ofst = ALTR_L2_ECC_REG_OFFSET,
        .ce_set_mask = (ALTR_L2_ECC_EN | ALTR_L2_ECC_INJS),
        .ue_set_mask = (ALTR_L2_ECC_EN | ALTR_L2_ECC_INJD),
+       .set_err_ofst = ALTR_L2_ECC_REG_OFFSET,
        .trig_alloc_sz = ALTR_TRIG_L2C_BYTE_SIZE,
 };
 
diff --git a/drivers/edac/altera_edac.h b/drivers/edac/altera_edac.h
index 54e2742..d4105b0 100644
--- a/drivers/edac/altera_edac.h
+++ b/drivers/edac/altera_edac.h
@@ -232,6 +232,7 @@ struct edac_device_prv_data {
        int ecc_en_ofst;
        int ce_set_mask;
        int ue_set_mask;
+       int set_err_ofst;
        int trig_alloc_sz;
 };
 
-- 
1.7.9.5

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